Create a program where 10 'worker' threads are created. Set all of the worker threads to block on the same condition variable. Last, use pthread_cond_broadcast to manually signal all worker threads to wake up at the same time.
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- Consider the standard web log file in assets/logdata.txt. This file records the access a user makes when visiting a web page (like this one!). Each line of the log has the following items: • a host (e.g., '146.204.224.152') • a user_name (e.g., 'feest6811' note: sometimes the user name is missing! In this case, use '-' as the value for the username.) • the time a request was made (e.g., '21/Jun/2019:15:45:24 -0700') • the post request type (e.g., 'POST /incentivize HTTP/1.1' note: not everything is a POST!) Your task is to convert this into a list of dictionaries, where each dictionary looks like the following: example_dict = {"host": "146.204.224.152", "user_name": "feest6811", "time":"21/Jun/2019:15:45:24 -0700", "request": "POST /incentivize HTTP/1.1"} def logs (): with open("assets/logdata.txt", "r") as file: logdata = file.read() #YOUR CODE HERE raise NotImplementedError() one_item= {'host': '146.204.224.152', 'user name': 'feest6811', 'time': '21/Jun/2019:15:45:24 -0700',…Write a multithreaded java program where a person gains 1000 calories throughout the day. But, the person burns it off too. So, the balance is zero. That means no gain or loss in calories. Synchronization will enable you to achieve zero balance every time the program is run. Note: First, do not think about synchronization. Write the program with two threads, one java file can handle the task- I named it Zerosum. There are two functions here, gainCalories() and burnCalories(). Each thread handles one of those functions. The run() method of each thread will have the method details. You can also call those methods if you decide to develop it outside the thread block. You are keeping a count of 0 to 1000 calories for both gain and loss. You need to keep track of the balance, so that is your instance variable which you print at end of the program. At the beginning of the program balance is zero. When you run this multithreaded program without synchronization, each run will show a result - a…Create two Stacks S1 and S2 on two different arrays. Push and Pop operations on S1and S2 are to be handled by separate Threads T1 and T2. Create a class called myException to override the toString() method. Raise the exception when size of S1 and S2 becomes equal. Note: please write a proper java program for the above syntax
- Create the Singly Linked List after having executed the following methods. Each item must have a headand tailreference. Whenever a method is not expected or invalid, write Exception. Only the process not the code •addTail("Bungee")•addTail("Yeti")•addTail("Screendoor")•addTail("Ladder")•removeHead()•addHead("Flag")•addHead("Ducky Tube")•addHead("Snorkel")Scenario: You have been tasked with building a URL file validator for a web crawler. A web crawler is an application that fetches a web page, extracts the URLs present in that page, and then recursively fetches new pages using the extracted URLs. The end goal of a web crawler is to collect text data, images, or other resources present in order to validate resource URLs or hyperlinks on a page. URL validators can be useful to validate if the extracted URL is a valid resource to fetch. In this scenario, you will build a URL validator that checks for supported protocols and file types.We will use the file classlist.txt. Note that it contains a list of usernames. 3. Write a script called finduser that is to be called as follows, where classlist is the name of the classlist file, and username is a particular student's username, either first name or last time. ./finduser classlist username The script should check that the correct number of arguments was received and print an error message if not, check whether the classlist file exists and print an error message if not, print the line of the given username in the classlist file If you have not been doing so all along, you should now add some comments to your script and thoroughly test it! 4. Write the script into your lab report.
- Hello, I need help with this homework that is due tomorrow at 8 am EST. I am struggling with my programming classes. Write a PingPong class that implements the Runnable interface and will write ping or pong in a console window. Have it print the word (ping or pong) at least 10 times before it terminates. Write a program that creates and runs two threads using the PingPong class. One that prints ping, one that prints pong. Additional Notes: The PingPong class should print ping or pong only. It should not even be able to print anything else. You can use the constructor to set up which it prints (ping or pong). Use a loop in the PingPong class to print at least 10 times and have the thread sleep for at least 10 seconds each time through the loop. The main program should create and run two instances of the PingPong class, one that does ping and one that does pongThe Stock of the book needs to be updated correspondingly after a customer has made an order, or a customer has cancelled an order. It can be accomplished by using trigger. You are asked to implement a trigger which needs to take following into consideration: a. The trigger needs to be fired after a new row has been inserted into table Orders, or after a row has been deleted from table Orders which indicates an order has been cancelledb. Each order may contain multiple books in ORDERTITEMS table You also need to write SQL statement or/and PL/SQL code to demonstrate that the implemented trigger accomplishes the business logicErrors produced when calling 3. Find the maximum element from the BST or4. Find the minimum element from the BST before adding elements so the program should output 0(0) instead of an error "Exception in thread "main" java.lang.NullPointerException: Cannot read field "right" because "<local1>" is null at BST.findMax(BST.java:109) at BST.main(BST.java:194)" "Exception in thread "main" java.lang.NullPointerException: Cannot read field "left" because "<local1>" is null at BST.findMin(BST.java:118) at BST.main(BST.java:197)"
- Question 6 The following threads should print out a sequence of 'A's, 'B's and 'C's so that the following rules are satisfied: • For every 'B', there can be a maximum of four other characters, of either of the other two threads, i.e. 4*B>=A+ C. • All the threads should terminate when 100 characters are output. Use Qt semaphore classes for your solution. Define and initialize all the variables you need. class threadA public: void run () { while (1) { cout << "A"; class threadB () { public: void run () { while (1) { cout << "B"; } class threadC () { public: void run () { while (1) { cout << "C": }I am getting an error that says "Exception in thread "main" java.util.NoSuchElementException: No line found" in Java. I have tried adjusting the lines that are available in the txt file, however, that doesn't solve the issue. The txt file has 20 lines: Nickle PattersonSeniorCPSC8Tom SmithSophomoreEDUC3Mcfloos LossFreshmanCPSC1Charlotte NiematodeJuniorMATH6Sally HamptonSeniorPsychology7 Trying to get it to properly run. Any help is appreciated. ThanksWrite a java application withtwothreads named “Thread-1” and “Thread-2”. The “Thread-1”reads the file “sampleFile.txt” contentand notifies “Thread-2”whenever it reads an even number. “Thread-2”writes user input into the same file and notifies “Thread-1”to continuethe process. This process will continue until user enters keyword “stop” w giving the input in the “Thread-2”.